-CHAINS OR SNOW TIRES ARE REQUIRED FROM   3 MI WEST OF THE YOSEMITE NATIONAL PARK BOUNDARY TO   THE YOSEMITE NATIONAL PARK BOUNDARY (TUOLUMNE CO) 
+CHAINS ARE REQUIRED ON ALL VEHICLES EXCEPT 4-WHEEL-DRIVE VEHICLES WITH SNOW  TIRES ON ALL 4 WHEELS FROM 3 MI WEST OF THE YOSEMITE NATIONAL PARK BOUNDARY TO   THE YOSEMITE NATIONAL PARK BOUNDARY (TUOLUMNE CO)